The replacement of brake pads usually takes 1 to 2 hours, with the specific duration depending on the vehicle model structure and the technician's proficiency. However, the actual replacement interval should be determined based on comprehensive assessment of the vehicle's usage conditions. It is recommended to inspect and replace front brake pads every 30,000 to 50,000 kilometers, while rear brake pads should be evaluated between 60,000 to 100,000 kilometers. More importantly, monitor the wear thickness: new pads measure 1.5 cm in thickness. Replacement should be considered when wear reaches 5 mm (approximately one-third of the original thickness), and becomes mandatory when below 3 mm.
Driving habits significantly impact their service life. Frequent hard braking or prolonged heavy loads may reduce the replacement interval to 20,000 kilometers, whereas conservative driving can extend it to 80,000 kilometers. Regarding materials, semi-metallic brake pads offer optimal durability, while ceramic pads provide superior braking performance but wear faster.
Particular attention should be paid to metal-on-metal grinding noises or noticeable reduction in braking effectiveness - immediate servicing is required even if the recommended mileage hasn't been reached. Professional inspections are advised every 5,000 kilometers or six months, with shorter intervals for mountainous terrain driving or automatic transmission vehicles. During replacement, opt for genuine parts and concurrently examine the brake discs and fluid condition to ensure overall braking system reliability.
